iglo    69.376109939      -81.810219838    ntal   tenv3 files through 17 jan 2026
 iglo   00JUL29  2000.5749   0.001453  0.001819 -0.000579
 iglo   05JUL13  2005.5305   0.000443  0.002124  0.000139
 iglo   05JUL14  2005.5332   0.000696  0.001755  0.000660
 iglo   05JUL15  2005.5359   0.000434  0.001517  0.001317
 iglo   10JUL14  2010.5325   0.002055  0.002306  0.000132
 iglo   10JUL16  2010.5380   0.001220  0.002594 -0.001333